Circular sawing machine



KNO Model.) 3 Sheets-Sheet 1. G. M. HINKLEY.

CIRCULAR SAWING MACHINE. No. 314,379. Patented Mar. 24, 1885.

Georg Jl/LHw-Zey,

N. PUERS. Prwm-Lnhwgwpher. washington. D, c.

(No Modeln.) 3 SheetsSheet 2.

' G. M. HINKLEY. CIRCULAR SAWING MACHINE.

No. 314,379. Patented Mar. 24, 1885.

N. PETERS. Pnwwmrmguphef. wauw nnnnnn C.

(No Model.) 3 Sheets-.Sheet G. M. HINKLEY.

GINROULAR SAWING MACHINE. No. 314,379. Patented Mar. 24, 1885.

` NiTED STATES PATENT rrien.

GEORGE M. lllNKLEY, OF MILlVAUKEE, VISCONSIN.

CIRCULAR SAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 314,379, dated March 24, 1885.

I Application filed January 30, 1885. (No model.)

To all whom t may concern:

Be it known that AI, GEORGE M. HINKLEY, of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain .new and useful Improvements in Circular Sawing Machines, of which the following is a specification. 4

My invention relates to machines for sawing laths; and it consists in a novel construction `of the same, as hereinafter set forth.

In the drawings, Figure l is a top plan View of the machine, Fig. 2 a side View, and Fig. 3 an end view of the same. Figi/.1f` is an enlarged view of a portion `of the stationary table or frame; Fig. 5, an enlarged cross-section on the line :t x, Fig. l; Fig. 6, a section on the line y y; Fig. 7, a view showing the operation of the upper feed-rolls and their boxes, and Fig. 8,aview illustrating the manner of driving the feed-rolls and saws.

This invention is designed more particularly for sawing laths; and it consists in a novel construction and arrangement of the bearings for the upper feed-rolls, in the construction of the guide for the lumber, in a detachable table, andv in mechanism for imparting motion to the machine.

A indicates the frame ofthe machine, of subl the gear-wheels and the pulleys E. Each of the brackets Bis furnished with a laterallyextending arm, B, in which ishinged an overhanging lever, G., said lever being provided on its under side with two depending arms, b, between which is held, by set-screws c, a box, H, supporting the outer end of one of the upper feed-rolls, I. The outer ends of the lever G are attached to strong spiral springs v cl, and provided between said boxes with .an`

J, which are attached te the frame A, as shown in Figs. 2 and 3.

K indicates a saw arbor or shaft, extending across the machine parallel with the feed-rolls, and carried `at either endin boxes or bearings elongated pulley, L. rihe shaft K extends outward beyond its boxes d, as shown in Figs. 1 and 3, the rear end passing between the pulleys E, while the other end is provided with saws e and suitable retaining devices therefor.

M indicates a bracket secured to the frame by bolts or other Vmeans, and, as shown in Figs. 4 and 5, provided with a depression or seat, f, to give room for the toothed or corrugated'end of the feed-roll, the roll extending slightly above the upper face of the bracket, as shown in Fig. 3. The bracket M is provided with an arm, g, to support or aid in supporting the removable table N, and with a'groove or slot, L,-having a beveled side or face, as shown enlarged in Figs. 4 and O indicates a guide which moves over the surfaceof the bracket M, said guide being of T form substantially, and provided with a depending tongue, i, to iit the groove h in the bracket M. The guide O is also cut away at top and bottom, as indicated in Fig.l 5, to form recesses j, to allow it to pass between the upper and lower feed-rolls, as presently explained.

In order to operate the guides, ll employ a hand-lever, P, pivoted by a bolt, 1k, to the bracket M,'and slotted to receive a bolt or stud, Z, projecting upward from the slide, as shown in Figs. 1 and 5. v

Attached to the bracket M is segment Q, provided lwith a series of notches, m, with which a pin or lug, a, on the lever Pengages, to retain the lever and guide inany desired position. A slot, o, is cut in the bottom of the groove h to admit a spiral spring, p, attached to the guide O and to the bracket M, to hold the guide down to its seat, as shown in Fig. 5. The brackets R at the rear side of the frameV carry at their upper endspivoted boxes or bearings S, in which the rear ends of the upper feed-rolls are supported, these boxes or bearings S being similar to the boxes H,

carried in the overhanging arm G, and-supporting the forward end of the upper feedrolls, as shown in Figs. l, 3, and 7. rI he feedrolls Iare provided with gears ct, to engage `with the gears a on the lower feedrolls,-D.

The removable table N, as shown more clearly in Figs. l, 3, and 6, is recessed to allow the ends of the lower feed-roll, D, to project out beyond the width of the saws.

IOO

i As shown-in `6, and-by dotted lines in Fig. 1, the removable table N is provided with hooks or lugs r, which engage with a flange,

v s, on the bracket M, or with a lug on the side Mao of the arm g thereof. This construction permits the table N to be removed at will by simply raising its outer edge and disengaging the hooks or lugs r from the flange or stud s. Access .may thus be had tothe saws, which can be removed or adjusted without displacing any other parts of the machine. The table N is made to stand flush with the upper face of bracket M, and forms a continuation thereof, as in Figs. 1, 2, 3, and 6.

In order to cause the proper feed of the material, I adopt the construction shown in Figs. 1, 2,' and 8. A single belt, t, passes from one pulley, E, to the other on their lower sides, thence up over their upper surfaces and down around the lower side ofthe shaft K, extending between the pulleys E E, as shown in Fig.

' 8. This single belt t causes both the belt-pul as required.

leys E to revolve to the left and the shaft K, carrying the saws e, to the right. As the pulleys E are connected to and carried by the lower feed-roll shafts, D, it will be seen that the lower feed-rolls, D, will be caused to revolve in such direction as to cause the feed of the material in the proper direction. Motion is communicated to the upper feed-rolls, I, through the gear-wheels a', carried thereby, which mesh with the gears a on the shafts D. It will be seen that by the use of one belt the saws'and bot-h sets of feed-rolls are caused to revolve in their proper directions and speed.

Motion may be communicated to the beltpulley L from any convenient motive power.

Stock being fed between the upper and lower rolls, D I, and motion being communicated to them as described, the guide O is moved by lever P to any desired position (but always in line with the out of the saws) to vary the width of cut or to feed narrow or wide lumber, In thus moving over the table the guide has to pass between the feed-rolls,

v journals, the descent of the levers G, and consequently the approach of the upper andjlower i feed-rolls.

and 'wouldbe injured thereby were it not for the recesses j, cut in the upper and lower faces of the forward end of the guide, as shown in Figs.-2 and 5, which allows the guide to be moved backward or forward, as desired, without interference.

The upper feed-rolls, being hung or supported as above explained, readily adjust themselves to the inequalities in the thickness of the stock fed between them, thev journalboxes rocking upon pivots and thereby preventing any cramping or binding of the roll- It is apparent that weights may be substif tuted for the springs ,though the springs are preferred. u

I am aware that self-adjusting feed-rolls are common to many forms of wood-,working machilies, and therefore make no broad and gen-` eral claim thereto.

g ln order to limit the downward movement ofthe overhanging arm G,I provide the bracket B with an upwardly-extending arm, o, upon which the depending arms b on the arm G rest, as shown in Fig. 2.

Having thus described luy-invention, what I claim is y 1. In a sawing-machine, the combination of a frame, a lower feed-roll mounted in stationary bearings in said frame, and provided with a gear-wheel, and an upper feed-roll; carried at one end in a swiveled box journaled in a stationary bracket secured to the frame and at its other end in a similarly-swiveled bearing carried yin a lever pivoted to the frame, gear-wheels connecting the upper and lower rolls, and a spring connecting the pivoted lever and frame and tending to hold the upper roll down to its work, as set forth.

2. In a sawing-machine, the combination of a frame, a lower feed-roll mounted in stationary bearings therein, and an upper feed-roll geared to the lower roll and having one end carried in a bearing swiveled in a stationary frame and its other end carried in a bearing swiveled in a swinging frame, to allow of a free verti cal movement of the upper feed-roll.

3. In asawing-machine, the combination of a frame, A, upright'bracket B, secured to the front side of said frame and provided with lateral extension B', lower feed-roll, D, box O for said roll mounted in the bracket, arm G, pivoted to the bracket B to allow a vertical movement of the arm, upper feed-roll, I, and box H for said roll, carried by and swiveled in the arm G, as and for the purpose set forth. 4. In a sawing-machine substantially such as described, the combination of frame A,provided with a saw-arbor, saw, and feed-roll, and bracket M, rigidly secured to said frame,and provided with a depression in its face beneath thefeed-roll to afford room therefor, and extending beyond said roll to support the material close to the saw, substantially as shown and described.

5. In asawing-machine, the combination of frame A, provided with a saw-arbor and a saw, bracket M, secured to said frame,and provided with abeveled groove, h, guide O, mounted upon said bracket, and provided with a beveled tongue, to iit and move within the groove h, and hand-lever P, pivoted to'the bracket M and to the guide, as shown,whereby said guide can be adjusted instantaneously to any desired position.

6. In a sawing-machine, the combination of a frame provided'with a saw or saws and feed- IOO IIO

rolls, bracket M, secured upon the frame,and

provided with groove and slot o inthe base ofsaid' groove, guide O, having tongue t, moving in said groove, and spring p, connecting the guide and bracket, whereby the guide is held firmly to its seat in the bracket.

7. In asawing-machine constructed substan-v tially as shown and described, the combination of frame A, arbor K, provided with saws e, brackets M, securely fastened to the upper side thereof, and provided with supportingarm g and lug or ange s, and removable table N, provided with hooks r, to engage the lug or flange s, as and for the purpose seb forth.

8. InasaWing-rnaehineconstructed.substantially as described and shown, the combination of frame A, bracket M, secured thereto, as shown, upper and lower feed-rolls, D I, and guide O, adapted to be moved over the surface of and guided by Jche bracket M betweenthe rolls D I, and having its forward edge notched on its upper and lower faces, as shown, whereby it may be moved the entire Width of out without coming in Contact with the feed-ro1ls.

9. In a sawing-machine, the combination of GEORGE M. HINKLEY. Witnesses:

WM. W. ALLIS, ALBERT HoPPIN. 

